등속성 체간 훈련이 만성 뇌졸중 환자의 체간 근력과 보행 및 균형 향상에 미치는 효과
The Effect of Isokinetic Trunk Exercise for Strength, Gait and Balance in the Patients with Chronic Stroke
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본 연구의 목적은 만성 뇌졸중 환자를 대상으로 등속성 체간 훈련이 근력과 보행, 그리고 균형에 미치는 영향을 알아보는 것이었다. 본 연구의 대상자는 만성 뇌졸중 환자 20명으로, 일반적 물리치료와 등속성 체간 훈련을 실시한 집단(10명)과 일반적 물리치료만을 실시한 집단(10명)으로 나누었다. 등속성 체간 훈련은 등속성 장비(Con-trex)를 이용하여 체간의 굴근과 신근의 강화를 위해 90°/sec에서 5회 1세트, 120°/sec에서 15회 1세트, 150°/sec에서 15회 1세트를 주 3회 20분 동안 총 8주간 실시하였다. 실험 전, 후에 체간 근력 검사, 10 m 보행 검사, 안정성 지수(stability index), 체중분산지수(weight distribution index), 무게중심의 좌표(coordinates of center of pressure), 일어나 걸어가기(timed "up and go") 검사를 실시하여 체간 근력, 보행, 정적 균형 및 동적 균형 능력을 비교하였다. 결과에서 실험군은 체간 신근의 근력, 10 m 보행 검사, 무게 중심의 좌표, 일어나 걸어가기 검사가 유의하게 향상되었고(p<.05), 대조군에서는 유의한 차이가 없었다. 또한 두 군간에서는 실험 후 체간 신근의 근력에서만 유의한 차이가 있었다(p<.05). 본 연구의 결과로 등속성 체간 훈련이 만성 뇌졸중 환자의 체간 근력, 보행, 정적 균형 및 동적 균형 능력의 향상에 효과적임을 알 수 있었다. 이는 만성 뇌졸중 환자의 기능 향상에 효과적인 훈련 방법을 제공할 것이며, 앞으로 체간 근력 강화 운동의 효과에 대한 다양한 연구가 필요할 것으로 사료된다.
Abstract
This study was to evaluate the effects of a isokinetic trunk exercise in strength, gait and balance of patients with chronic stroke. Participants were randomly allocated to two groups: experimental(n=10) and control(n=10). Both groups received general physical therapy for 5 session 30 minutes per week during 8 weeks. During 8 weeks of the experiment, both groups received a 30 minute general physical therapy session 5 times in each week. The experimental group practiced an additional 20 minute isokinetic trunk exercise that consisted of 3 programs for trunk flexor and extensor muscles. The results were evaluated by trunk muscle strength test, 10 m gait walking test, stability index, weight distribution index and coordinates of center of pressure. The results of study were as follows : There were significantly differences in the amount of change of trunk extensor muscle strength, 10 m gait walking test, stability index, weight distribution index, and coordinates of center of pressure in the experimental group(p<.05), whereas there were not significantly differences in control group(p<.05). Consequently, isokinetic trunk exercise improved trunk muscle strength, gait, static and dynamic balance. These results suggested that the isokinetic trunk exercise was feasible and suitable for patients with chronic stroke.
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